Four times in the past two months I have noticed that projects that I completed in Adobe Express have disappeared from the "Your Stuff" screen. It is as if they never existed. The first time, I thought it might have been a mistake that I had made. Second time, I figured it might have been a quirk of how I created the project. Today, I see that the last two projects I created are nowhere to be found. I was editing both of them regularly up until about two weeks ago. But when I went to update one today, both were gone.